861902-18-3Relevant academic research and scientific papers
Characterization of a rhodium(III)-imine-orthometalated imine complex: Reversible C-H activation of a coordinated imine
Ezhova, Maria B.,Patrick, Brian O.,James, Brian R.
, p. 3753 - 3757 (2008/10/09)
Solutions of cis-[Rh(PPh3)2(solv)2]PF 6 (solv = acetone or MeOH) react at room temperature under Ar with benzophenone imine to yield cis-[Rh(PPh3)2(η 1-NH=CPh2)2]PF6 (3), but depending on reaction conditions, one of the imine ligands undergoes orthometalation to give [RhH{NH=C(Ph)(o-C6H4)}(HN=CPh2)(PPh 3)2]PF6 (2) with trans-phosphines; this is the first recorded complex containing an imine in its η1-form and as an η2-moiety formed via orthometalation. Complexes 2 and 3 are characterized by elemental analysis, 1H and 31P-{ 1H} NMR spectroscopy, and, in the case of 2, an X-ray crystal structure.
